baber/WOPTO huggingface dataset:
Patent DE-3044555-A1 (DE)
Title: EM hooter for vehicle - has ventilator channels at end of vibrating core holding membrane
Inventor: BELTRAME LEONARDO
IPC: G10K9/22
Filed: 1980-11-26
Abstract: The hooter has a membrane attached at its centre to a vibrating core. The core has a post of small cross-section that passes through the membrane and whose end is broad in order to hold the membrane with the aid of a washer. A circular channel (16) is located at the bottom of the post in the end face (15) of the core. The end face also has radial channels (17) connecting the circular channel to the outside of the core. The post has a longitudinal channel (18) parallel to the axis of the core and also connected to the circular channel. The three channels are formed by punching. The channels allow air to flow through the hooter but prevent water from penetrating easily.
Patent DE-3046161-A1 (DE)
Title: Machine tool strip feed - has plates stored in magazine before removal and division strips for transfer to machine input
Inventor: PASSOW ERICH
IPC: B21D43/28
Filed: 1980-12-06
Abstract: The mechanism is for feeding strip material to a machine tool, and has a bundle of plates stored vertically in a magazine (2). The plates are taken from the magazine and divided into equal width strips which are then moved to a transporter (52). They are then moved to a delivery position from which they pass to a feed unit for the machine tool.
Patent DE-3102353-A1 (DE)
Title: Alkyllactonecarboxylic acids (hydrogenated pyrone derivatives) and their salts, process for their preparation and their use as anti-corrosion agents
Inventor: HOENL HANS DIPL CHEM DR
IPC: C07D309/30
Filed: 1981-01-24
Abstract: Compounds of the formula I <IMAGE>  in which : C4H8 = a unit of a butadiene-free olefin cut which contains at least 30 mol% of isobutene; n = 2 to 6, preferably 2 to 3, X<+> = a proton, alkali metal, half alkaline earth metal or optionally substituted ammonium ion, a process for the preparation of these compounds in which reaction products of oligomers of a butadiene-free C4-olefin cut having n monomer units are subjected to a heat treatment with maleic anhydride in neutral aqueous medium at 170 to 220 DEG C under autogenous pressure and the resulting lactonecarboxylic acid is optionally neutralised with alkali metal hydroxide, alkaline earth metal hydroxide, ammonia or an amine base, and the use of the compounds as corrosion inhibitors in aqueous systems, e.g. industrial cleaners.
Patent DE-3104490-A1 (DE)
Title: Velvet-cutting device
Inventor: FITE BORGUNO SALVADOR
IPC: B26D1/14
Filed: 1981-02-09
Abstract: Velvet-cutting device having a plurality of circular knives for cutting the loops of the fabric, in order to obtain the actual loops of the velvet, the said velvet-cutting device having two or more cutting means, each of which engages on alternate loops of the fabric, all the loops of the fabric being grasped during one pass. <IMAGE>
Patent DE-3108865-A1 (DE)
Title: Vibration device
Inventor: FAHRIG RICHARD
IPC: G10H3/18
Filed: 1981-03-09
Abstract: Published without abstract.
Patent DE-3113655-A1 (DE)
Title: Device without losses depending from the principle, for freeing electrical or electronic one-way switches from a high power loss stress when they are switching on and off, as well as from increased blocking voltage stress following with their being switched off
Inventor: BOEHRINGER ANDREAS PROF DR ING
IPC: H03K17/60
Filed: 1981-04-04
Abstract: With respect to the best-possible utilisation of their electrical limiting data, and taking into account their thermal stress and the losses associated therewith, electrical and electronic one-way switches may not be subjected to significant power loss stress while they are being switching over. During the switching-on process of the one-way switch, simultaneous stressing of the same by high current and voltage values is prevented by switching-on relief inductors which limit the rate of current rise. The energy stored in these switching-on relief inductors is converted into resistive heat losses in known relief networks, after the one-way switch is switched off. In contrast, in the case of the device according to the invention and shown by way of example in Fig. 9, this energy is initially temporarily stored in an overvoltage limiting capacitor (6) and then in an oscillation inductor (19) and is finally fed back into the supplying DC voltage system with the aid of diodes (20, 7 and 4). If this device is combined with a switching-off relief network, according to one of the German Offenlegungsschriften P 2649385, P 2650673 or P 2710938, a device is produced which frees the one-way switch of high power loss stress while it is being switched on as well as while it is being switched off, without any losses resulting from the principle. <IMAGE>
Patent DE-3117181-A1 (DE)
Title: Apparatus for severing a wire-turn strand in a bundle-forming station
Inventor: HAUCK ALBERT
IPC: B21C47/14
Filed: 1981-04-30
Abstract: An apparatus for severing a wire-turn strand, which can be deposited in a vertical fall shaft of a bundle-forming station by means of a continuous conveying device, consists of at least one intermediate floor formed from at least three separating fingers movable radially into the fall shaft, and of at least three catching arms which are arranged underneath the intermediate floor and can pivot into the region of the fall-shaft orifice and by which the wire turn hanging down from the intermediate floor can be brought into the region of shears. An apparatus of this type is to be constructed easily and simply, and the wire is to be capable of being cut without any adverse deformation of the wire turns and without pointed wire ends being obtained, and only a drive of low power is to be necessary. It is proposed, for this purpose, that the catching arms be of sickle-like design in a way known per se and that each catching arm be assigned shears arranged on the periphery of the fall shaft.
Patent DE-3122085-A1 (DE)
Title: Warning device for detecting a liquid level
Inventor: TSUBOUCHI KAORU
IPC: B60T11/26
Filed: 1981-06-03
Abstract: A warning device for detecting a liquid level is described, in the case of which an aperture in a supply tank and/or supply container is sealed off by means of a first lid element, to which a second lid element is attached. Each lid element has an endless and/or closed wall of the same shape, so that an insulated and/or shielded aperture leading through to the supply container is produced to accommodate leads which extend to a liquid level display device for a stored liquid; the oil contained in the supply container is therefore prevented from escaping from the supply container, as leaks of this type are displayed and/or recorded and penetration of water into the supply container is prevented.
Patent DE-3123717-A1 (DE)
Title: Pressure-regulating device for gas installations
Inventor: SCHUHBAUM HEINZ
IPC: F17C13/04
Filed: 1981-06-15
Abstract: The invention relates to a pressure-regulating device for gas installations, with a housing (10) in which a working diaphragm (4) loaded by at least one compression spring (5) and subject to the action of the gas pressure actuates a regulating element (2) and the space (17) behind the diaphragm is connected to the atmosphere via a vent opening (18) in the housing (11). In order to prevent gas from escaping from the pressure-regulating device if the working diaphragm (4) is destroyed by heat in a fire, the vent opening (18) is fitted with a valve (19), the valve plate (20) of which is held in the open position against a stressed spring (24) by a connecting means (23) which is released at high temperatures. <IMAGE>
Patent DE-3127595-A1 (DE)
Title: Circuit arrangement for reducing the distortion factor
Inventor: POHL WILFRIED DIPL ING
IPC: H03G7/00
Filed: 1981-07-13
Abstract: The invention relates to a circuit arrangement for the wireless transmission of audio-frequency signals, preferably from a transportable microphone transmitter to a receiving device which is located at a distance from the former using a compander system whose compressor unit is assigned to the transmitting device and whose expander unit is assigned to the receiving device. The object is to reduce the distortion factor of a transmission path which is provided with an NE 570 compander system in order to attain high transmission quality. The invention provides a combination of three circuit features which relate to the distortion factor compensation of the compressor circuit, to the lower limit frequencies of networks disposed in the compressed audio-frequency signal path and to the control time constants of the compressor and expander circuit.
Patent DE-3128532-A1 (DE)
Title: Apparatus for feeding fibres to a textile machine
Inventor: KELLER ALEX J
IPC: D01G23/02
Filed: 1981-07-18
Abstract: In a collecting box having an opening roller for the collection of fibres, perforations are provided on an essentially vertically extending side wall above and below the normal filling level (L) of the fibres collected in the box. A blower generates an airflow which runs over the upper part of the opening roller in the direction of the perforations and which takes up the fibre flakes loosened by the opening roller and thereby settling in the box at a uniform filling height.
Patent DE-3135141-A1 (DE)
Title: Covering for elongated building elements
Inventor: TRANKER KURT
IPC: E04C3/292
Filed: 1981-09-04
Abstract: The invention relates to a covering for elongated building elements. To cover an elongated building element, use is made of at least one plank (1) which is provided, on one side face, with at least one recess for connection to at least one projection provided on the elongated building element. The plank possesses, at a distance from the recess, a further hollow which is open towards the same side as the recess and with which a projection of a covering strip can be engaged. At least one further side face of the plank likewise possesses a hollow which can be engaged with a projection of a further covering strip. As a result of the abovementioned plank design, planks can both be fixed to the elongated building element and connected to covering strips, thus providing the possibility of covering building elements of various dimensions by inserting any desired number of covering strips between adjacent planks which are fixed to the building element.
Patent DE-3139630-A1 (DE)
Title: Device for processing printing plates
Inventor: WAKABAYASHI MASAYOSHI
IPC: G03D3/13
Filed: 1981-10-06
Abstract: An improved device for processing printing plates or the like is described, which essentially exhibits a developer container which is disposed deeper, with developer situated therein and spray tubes disposed above, an arrangement being provided in such a manner that a presensitised plate for printing or the like, which is to be processed, is initially passed through the developer container and is then subjected to the treatment with the developer, which is sprayed on from the spray tubes.
Patent DE-3140290-A1 (DE)
Title: Wall element made of individual panels
Inventor: BLUM ALBERT
IPC: E04C2/52
Filed: 1981-10-10
Abstract: A wall element consists of square or rectangular individual panels, in particular of tiles or the like, which are connected to one another to form a larger unit. To simplify the connection of the individual panels and at the same time open up new areas of application, each individual panel (1, 2) has a peripheral groove (5) in its end faces (4). Formed in the groove cross-section are undercuts (6) on both sides, which are designed so as to extend continuously from one end face (4) of the individual panel to the opposite end face. In addition, connection pieces (3) are provided, which can be inserted laterally into the grooves (5) of individual panels (1, 2) bearing against one another with their end faces (4) and engage with lateral projections (13) into the undercuts (6). <IMAGE>
Patent DE-3141641-A1 (DE)
Inventor: HILMANN JUERGEN
IPC: A61K49/22
Filed: 1981-10-16
Abstract: The useful lifetime and the amount of microbubbles of a size less than 50  mu m produced by mechanical agitation of an aqueous liquid employed as an ultrasonic contrast medium are increased by employing a liquid containing dissolved therein a tenside which reduces the surface tension of the liquid and a compound which raises the viscosity of the liquid.
Patent DE-3143623-A1 (DE)
Title: Method and device for cutting off an end piece from a timber blank
Inventor: HOLMBERG BO
IPC: B27B31/06
Filed: 1981-11-03
Abstract: A method for cutting off an end piece from a timber blank, whose edges are only clean cut as far as the end piece and in which the entire length of the timber blank and the length of the end piece are stored in a computer, is used by means of a device (Fig. 1) which is composed of a conveyor track (1) with conveyor rollers (3, 4) for transporting the timber blank. Along the conveyor track, photoelectric cell devices (35-37), a position determining pair (7, 8) with pulse generator (12) and a cutting plane (34), in which there is provision for a sawing element to operate, are successively attached. The respective distances between the photoelectric cell devices (35-37) and the position determining pair (7, 8) and their distance from the cutting plane (34) are stored in the aforesaid computer which can thus instruct the position determining device (7, 8) to advance the timber blank a sufficient length for the cutting of the end piece by means of a sawing element to take place in the aforesaid cutting plane (34). <IMAGE>
Patent DE-3149127-A1 (DE)
Title: Apparatus for loading trains with bulk material
Inventor: HEMMERLING CHRISTINA DIPL ING
IPC: B65G67/22
Filed: 1981-12-11
Abstract: The invention relates to an apparatus for loading trains with bulk material, in particular on large open-cast mining equipment. The aim of the invention is to improve the transfer of bulk material into all areas of a waggon, thereby increasing the degree to which the waggon is filled. It is accordingly the object to design the saddle in such a way that the flow of bulk material is guided in a concentrated stream with a minimum cross-section into the waggon. This is achieved according to the invention by the design of the tipping surfaces as lateral surfaces of two identical portions of a circular frustocone or preferably of a frustopyramid standing on the body side, the centre lines of which are preferably arranged parallel to the axis of rotation and pass through one another symmetrically, the pyramid faces forming a tangent to the lateral surface of the circular cone and the distance of the centre lines from the axis of rotation in the lower horizontal plane of the saddle corresponding to at least the sum of half the waggon aperture, the width of overlap of the saddle over the transverse wall of the waggon and the radius of the circle, the area of the semicircle of which is equal to the quotient of the delivery volume, enlarged by a certain amount for loosening, and its speed of fall.
Patent DE-3212092-A1 (DE)
Title: Synchronising ring body for an external-cone synchroniser
Inventor: ASHAUER KARL ING GRAD
IPC: F16D23/06
Filed: 1982-04-01
Abstract: The invention relates to a synchronising ring body for an external-cone synchroniser of a manual gearbox of vehicles. The synchronising ring body has two synchronising rings, which are connected rigidly to one another by means of spacer pins distributed over the circumference, and a sliding sleeve which is held in axially displaceable fashion on the spacer pins and is fixed in its central position by retention elements distributed uniformly over the circumference and passing through axial holes. In this arrangement, the retention elements have parts which are pressed against the walls of the holes under spring action and rest with oblique retaining shoulders arranged at the appropriate distance against the two sides of the sliding sleeve. According to the invention, the retention elements are formed by wire springs (6, 7) bent in a U shape which are each held in pairs next to one another with opposite orientation in the holes (17) of the sliding sleeve (5) and, on their legs (16) have retention shoulders (25) each assigned to one side of the sliding sleeve. <IMAGE>
Patent DE-3212120-A1 (DE)
Title: Process for treating oil-containing sludges
Inventor: HARTMANN WERNER
IPC: C22B1/00
Filed: 1982-04-01
Abstract: In the process for treating oil-containing sludges, and in particular highly oiled metallic sludges, the material to be treated is dissolved with continuous agitation using a variable excess amount of solvent and water at elevated temperature to give a mobile mass, from which the volatile and the flowable constituents are separated off and then the solvents are removed from the water and oil separated off, while the residual solids are dried separately. This process is carried out in three stages in a closed alkaline circulation and uses for example chloride solvents. Both the water and the solvents are in a closed circulation and can accordingly be continuously reused without needing to be disposed of.
Patent DE-3212417-A1 (DE)
Title: Answering machine with one or more devices for storing sound information
Inventor: MOTHWURF EWALD
IPC: H04M1/64
Filed: 1982-04-02
Abstract: The invention relates to an answering machine with one or more devices for storing sound information, with a central control unit, which is preferably a processor, where the beginnings and the ends of the text parts are rendered identifiable. Each start of any text part which has been rendered identifiable can be activated by the central control unit and a plurality of text parts can be combined with one another by the central control unit to form the complete announcement. The text parts may also contain information transmitted by the caller, where memory segments in the sound information memory can be accessed so quickly that announcement text parts can be sequenced to form a continuous announcement and/or memory segments containing messages are replayed without delay at the beginning and/or during the transition between any two messages. To mark the beginnings and ends of the text parts on the sound medium, mark inserters and mark identifiers to insert and identify marks on the sound medium and/or parts marking the sound medium position to identify the text parts and/or control commands can be provided and connected to the processor. <IMAGE>
Patent DE-3216363-A1 (DE)
Inventor: HORACEK HEINRICH DR
IPC: C08G18/10
Filed: 1982-05-03
Abstract: A process for bonding lignocellulose raw materials using an isocyanate group-containing urethane-modified diphenylmethane diisocyanate mixture having a viscosity of 120 to 1000 mPas at 25 DEG C. and an isocyanate content of 15 to 33.6 percent by weight which is obtained by reacting a diphenylmethane diisocyanate mixture containing 10 to 75 percent by weight of 2,4'-diphenylmethane diisocyanate with 0.05 to 0.5 hydroxyl equivalents of a polyol per equivalent isocyanate group.
Patent DE-3216558-A1 (DE)
Title: Heat-treatment channel
IPC: F26B13/02
Filed: 1982-05-04
Abstract: The channel serves essentially for the thermosetting of high-strength industrial yarns which are held tensioned in the longitudinal direction and which, arranged parallel to and next to one another in a large number, run longitudinally through the channel in the form of a web. The housing provided with an inlet and an outlet slit and insulated all-round is equipped with electrical radiant heating. It consists of a plurality of individually electrically heated plane cast nonferrous metal plates which are arranged closely next to and against one another without an intermediate gap and which thus form a casing over the entire surface covering the yarns at the top and bottom. So that this uniformly radiating heating surface remains sealing even after thermal expansion, the cast metal plates are screwed to one another and are mounted so as to be displaceable as a whole in the housing. <IMAGE>
Patent DE-3217883-A1 (DE)
Title: Gas sensor
Inventor: SCHEFFLER WERNER
IPC: G01N27/12
Filed: 1982-05-12
Abstract: In a solid-state gas sensor, there is a thin layer (11) of a metal phthalocyanine on a substrate (10). Such a gas sensor enables both a qualitative and a quantitative determination of gases and, in addition, it is stable, sensitive and selective and yields reproducible signals  with short response time. <IMAGE>
Patent DE-3219416-A1 (DE)
Title: Process for emptying a metering apparatus
Inventor: SCHMIDT GUENTER DIPL ING
IPC: B01J4/02
Filed: 1982-05-24
Abstract: Process for emptying a metering apparatus for measuring and dispensing small quantities of liquid with several interchangeable piston pump units with different piston and cylinder diameters, a constant piston stroke being associated with the pistons. The aim and object are quickly and thoroughly to empty the system, filled with residual liquid after dosing, of an F-dosing device, the liquid being removed from the system in the opposite direction to normal operation. The feed tube (6) is brought into the waste container (9), the drive motor (12) is reversed and switched on, the piston rod (10) with the piston (1) is moved by the cam mechanism (11) in the direction of the drive motor (12), the changeover valve (3) is turned such that the cylinder (2) and feed tube (6) are connected together, the piston (1) is moved in the direction of the changeover valve (3), the changeover valve is turned such that the cylinder (2) and drain tube (7) are connected together, and the aforementioned working steps, beginning after switching on of the drive motor (12), take place again and repeatedly until the whole system is free from liquid, and the drive motor (12) is finally switched off. <IMAGE>
Patent DE-3226757-A1 (DE)
Title: Dry chemisorption for binding pollutants such as SO2, HCl, HF and similar flue gas congeners, preferably downstream of fossil fuel power stations, refuse incineration plants, pyrolysis plants and similar flue gas producers
Inventor: HOELTER HEINZ DIPL ING
IPC: B01D53/34
Filed: 1982-07-17
Abstract: In the purification of flue gases by dry chemisorption using alkali metal compounds or alkaline earth metal compounds, the degree of adsorption is increased by admixing monocarboxylic or polycarboxylic acids and/or salts thereof to the alkali metal compounds or alkaline earth metal compounds. A further improvement is achieved by additionally injecting this mixture in the dissolved or dry state into the combustion chamber or by adding it to the fuel.
Patent DE-3229024-A1 (DE)
Title: Process for the preparation of polyphenylene ethers
Inventor: HAMBRECHT JUERGEN DR
IPC: C08G65/46
Filed: 1982-08-04
Abstract: The invention relates to a process for the preparation of high-molecular-weight polyphenylene ethers from monohydric phenols containing alkyl substituents in both ortho-positions or additionally in one meta-position, by oxidative coupling reaction with oxygen at 50 DEG C in the presence of a catalyst complex comprising a copper salt and an organic amine component, alkyl-substituted 4,4'-diphenoquinones being produced as byproducts, in which the reaction mixture containing alkyl-substituted diphenoquinone is reacted with compounds of the formula: <IMAGE> in which R<1> and R<2> are hydrogen atoms, R<3> and R<4> may be identical or different and are hydrogen atoms, alkyl groups having 1 to 8 carbon atoms and/or aryl groups. The reaction is expediently carried out with thiourea, in particular in aqueous solutions, the thiourea being present in amounts of from 0.2 to 2 mol, based on one mol of diphenoquinone.